Interim Financial Information (Unaudited) (Condensed Income Statement)(Details) (USD $)	3 Months Ended										12 Months Ended
	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Oct. 31, 2012	Jul. 31, 2012	Jan. 31, 2015	Jan. 31, 2014	Jan. 31, 2013
Condensed Financial Statements, Captions [Line Items]
Operating Expenses, Restatement and Remediation Related	$ 2,300,000	$ 2,100,000	$ 5,400,000	$ 12,200,000	$ 24,800,000			$ 3,000,000	$ 15,000,000	$ 11,000,000	$ 22,043,000	$ 53,791,000	$ 0
Gain (Loss) Related to Litigation Settlement		5,100,000			12,600,000	22,900,000					5,059,000	35,511,000	0
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down	1,330,000										1,330,000	0	0
Net sales	7,339,491,000	6,761,181,000	6,841,809,000	6,728,151,000	7,973,107,000	6,373,564,000	6,327,476,000	6,147,757,000			27,670,632,000	26,821,904,000	25,358,329,000
Gross profit	372,269,000	334,985,000	351,372,000	335,328,000	398,016,000	326,076,000	315,840,000	322,414,000			1,393,954,000	1,362,346,000	1,303,054,000
Operating income	101,684,000	66,745,000	67,710,000	31,496,000	97,743,000	63,880,000	29,859,000	36,031,000			267,635,000	227,513,000	263,720,000
Consolidated net income	80,677,000	41,700,000	39,328,000	13,467,000	109,761,000	37,716,000	14,695,000	17,760,000			175,172,000	179,932,000	183,040,000
Net income attributable to shareholders of Tech Data Corporation	80,677,000	41,700,000	39,328,000	13,467,000	109,761,000	37,716,000	14,695,000	17,760,000			175,172,000	179,932,000	176,255,000
Net income per share attributable to shareholders of Tech Data Corporation
Basic (in USD per share)	$ 2.12	$ 1.09	$ 1.03	$ 0.35	$ 2.88	$ 0.99	$ 0.39	$ 0.47			$ 4.59	$ 4.73	$ 4.53
Diluted (in USD per share)	$ 2.11	$ 1.09	$ 1.03	$ 0.35	$ 2.87	$ 0.99	$ 0.38	$ 0.47			$ 4.57	$ 4.71	$ 4.50
Reversal of valuation allowance					45,300,000						29,800,000	41,000,000
Undistributed Earnings from Foreign Subsidiaries	5,598,000				0						5,598,000	0
Europe
Net income per share attributable to shareholders of Tech Data Corporation
Reversal of valuation allowance	$ 19,200,000										$ 19,200,000	$ 45,300,000	$ 25,100,000